| Hickory to Oswego (Illinois) | 557.82 mi (897.72 km) |
| Hickory to Oswego (New York) | 591.11 mi (951.29 km) |
| Hickory to Otsego (Minnesota) | 920.21 mi (1,480.93 km) |
| Hickory to Ottawa (Illinois) | 560.74 mi (902.42 km) |
| Hickory to Ottawa (Kansas) | 791.68 mi (1,274.09 km) |
| Hickory to Ottumwa (Iowa) | 702.17 mi (1,130.04 km) |
| Hickory to Overland (Missouri) | 537.70 mi (865.35 km) |
| Hickory to Overland Park (Kansas) | 765.07 mi (1,231.27 km) |
| Hickory to Overlea (Maryland) | 363.13 mi (584.39 km) |
| Hickory to Oviedo (Florida) | 489.45 mi (787.70 km) |
| Hickory to Owasso (Oklahoma) | 810.98 mi (1,305.15 km) |
| Hickory to Owatonna (Minnesota) | 853.44 mi (1,373.48 km) |
| Hickory to Owensboro (Kentucky) | 349.68 mi (562.75 km) |
| Hickory to Owings Mills (Maryland) | 354.69 mi (570.82 km) |
| Hickory to Owosso (Michigan) | 523.81 mi (842.99 km) |
